Weir recommends operational re-greasing after every six
stages or six valve turn operations.
PROCEDURE
• Flush valve with clean water to wash away any
contaminants in the valve.
• The valve must be in the open position prior to pumping
the grease. Pump the operational grease, Val-Tex 972, into
the valve using the grease gun.
• Cycle the valve and grease per the following criteria:
– Pump to 2,000 psi
– Close and open valve
– Pump to 4,000 psi
– Close and open valve
– Pump to 6,000 ps
– Close and open valve
– NOTE: Air will be heard “popping” during
opening and closing. This will allow for a more
complete filling of grease in the valve.
• Visually inspect the inside of the valve to determine if the
grease is extruding around the sides of the plug
PREVENTATIVE MAINTENANCE GREASE PROCEDURE
• After each job, flush valve with clean water to wash away
any contaminants in the valve. Upon completion of the
job, grease with approved SPM® valve grease to displace
contaminants in between valve’s internal components.
To maximize the valve’s performance and longevity, it is
recommended that the lubrication maintenance procedure
described below be followed:
– Verify that the valve is in the OPEN position
before pumping grease.
– Using a hand pump grease gun (or grease
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machine), pump the lever in order to push the
grease into the valve. Val-tex 972 (SPM® PN
P32553) stick grease is recommended.
– If using a pneumatic grease gun, SPM® PN
P28682 grease can be used.
– Grease side of the valve to 2000 PSI
– Close and reopen valve
– Repeat process using grease insert on opposite
side of the valve.
MATERIALS
• Val-Tex 1502 (Temp Range -22F to 400F) SPM® P/N